Removed shield breaker block

core/src/mindustry/logic/LCategory.java

@@ -19,7 +19,7 @@ public class LCategory implements Comparable<LCategory>{
     operation = new LCategory("operation", Pal.logicOperations, Icon.settingsSmall),
     control = new LCategory("control", Pal.logicControl, Icon.rotateSmall),
     unit = new LCategory("unit", Pal.logicUnits, Icon.unitsSmall),
-    world = new LCategory("world", Pal.logicWorld, Icon.terminalSmall);
+    world = new LCategory("world", Pal.logicWorld, Icon.terrainSmall);
 
     public final String name;
     public final int id;

core/src/mindustry/logic/LExecutor.java

@@ -1084,7 +1084,6 @@ public class LExecutor{
         public int value;
 
         public float curTime;
-        public double wait;
         public long frameId;
 
         public WaitI(int value){
@@ -1110,6 +1109,15 @@ public class LExecutor{
         }
     }
 
+    public static class StopI implements LInstruction{
+
+        @Override
+        public void run(LExecutor exec){
+            //skip back to self.
+            exec.var(varCounter).numval --;
+        }
+    }
+
     //TODO inverse lookup
     public static class LookupI implements LInstruction{
         public int dest;

core/src/mindustry/logic/LStatements.java

@@ -675,7 +675,25 @@ public class LStatements{
 
         @Override
         public LCategory category(){
-            return LCategory.operation;
+            return LCategory.control;
+        }
+    }
+
+    @RegisterStatement("stop")
+    public static class StopStatement extends LStatement{
+
+        @Override
+        public void build(Table table){
+        }
+
+        @Override
+        public LInstruction build(LAssembler builder){
+            return new StopI();
+        }
+
+        @Override
+        public LCategory category(){
+            return LCategory.control;
         }
     }